is a species of flowering plant in the saxifrage family
known by the common name urn-flowered alumroot
. It is endemic
to the San Gabriel Mountains
of southern California
, where it grows on the rocky slopes. While uncommon in the wild, this species is cultivated as an attractive garden flower. This is a rhizomatous
perennial herb with multi-lobed leaves. It produces an erect, drooping inflorescence
which bears bright pink or magenta bell-shaped flowers.